Original message
| hoeracing769
 |  "Wiring help"
, posted Sun 10 Feb 19:16  
I'm replacing an old Honeywell thermosat with a new Hunter. The code on the old one is R,O,W,X,Y,B,G. The new one is G,Rc,Rh,Y/O,W/B,Y1. Can you help me?
Walt
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Replies:
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| Houston204
| "Re(1):Wiring help" , posted Sun 10 Feb 20:01
If you post the model number of your new stat, I can post the page of the manual that states it is not compatible with your multistage heat pump.
"Tip of the Day" Remember to remove power first.
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| | hoeracing769
| "Re(2):Wiring help" , posted Sun 10 Feb 20:09
Hunter Model 44155c
Walt
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| | Houston204
| "Re(3):Wiring help" , posted Sun 10 Feb 21:03
That is a single stage heat pump stat.
I recommend a Honeywell RTH7400 or RTH7500 for multistage heat pumps.
"Tip of the Day" Remember to remove power first.
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| | hoeracing769
| "Re(4):Wiring help" , posted Sun 10 Feb 22:02
do you have a wire diagram for the the old honeywell LR1620 so i can find ot which wire does what?
Walt
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| | Houston204
| "Re(5):Wiring help" , posted Sun 10 Feb 22:10:
Post the model number of your old stat. The LR number doesn't work.
"Tip of the Day" Remember to remove power first.
[this message was edited by Houston204 on Sun 10 Feb 22:13] |
| | hoeracing769
| "Re(6):Wiring help" , posted Sun 10 Feb 22:23
The only other number is Q672l 1193 1
8123
Walt
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| | Houston204
| "Re(7):Wiring help" , posted Sun 10 Feb 23:14
http://customer.honeywell.com/techlit/pdf/60-0000s/60-1152.pdf
Does your stat have a yellow and a red LED ?
Do you have any terminals not listed in this diagram?
Honeywell lists 4 manuals for the Q674L. Each manual has several stats. This was the only model with your listed terminals.
"Tip of the Day" Remember to remove power first.
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| | hoeracing769
| "Re(8):Wiring help" , posted Sun 10 Feb 23:23
Yes it does have two light. Same terminals. This looks like it . Thanks so much.
Walt
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| | hoeracing769
| "Re(9):Wiring help" , posted Sun 10 Feb 23:28
T872R
Walt
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| | Houston204
| "Re(10):Wiring help" , posted Tue 12 Feb 08:16
It's the subbase that determines terminal functions.
"Tip of the Day" Remember to remove power first.
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